CPUs and processes not evenly assigned?!

[Hubert Feyrer <hubert%feyrer.de@localhost>]

Hi,

I had to run a CPU-bound program today on a 2 CPU Xen (AWS) instance.
I expected each process to run on its own process, but what really 
happened is that both processes were fighting for the first CPU, leaving 
the second one idle.

NetBSD 7.0/xen with DOMU from Amazon AWS, more details here:
http://www.feyrer.de/NetBSD/blog.html/nb_20161105_1754.html

Is this expected behaviour? Definitely surprised me! :)


 - Hubert